|Publication number||US6206953 B1|
|Application number||US 09/004,373|
|Publication date||Mar 27, 2001|
|Filing date||Jan 8, 1998|
|Priority date||Jan 8, 1997|
|Publication number||004373, 09004373, US 6206953 B1, US 6206953B1, US-B1-6206953, US6206953 B1, US6206953B1|
|Inventors||Jonathan F. Bangs|
|Original Assignee||Jonathan F. Bangs|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (19), Referenced by (11), Classifications (11), Legal Events (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present application claims priority from provisional patent application Ser. No. 60/034,984 filed Jan. 8, 1997.
The present invention relates generally to a fluid separator and more specifically to an oil/water/air separator for a compressed gas unit which separates oil/water from air during the condensate drain cycle of the compressor so that the oil/water can be collected and the air can be dumped to atmosphere.
In conventional systems for compressing a gaseous fluid, a liquid, for example oil, is added to the gaseous fluid as a byproduct of the compressor lubrication system. In addition water is present in the ambient air and is condensed as a part of the compression process. These liquids must be removed in a separating unit prior to the compressed gaseous fluid being delivered to the consumer. Environmental concerns have dictated that any air exhausted to the atmosphere must also be free of oil/water so that the air must be filtered and the oil/water mixture separated from the air during the drain cycle of the compressor.
The present invention relates generally to a fluid separator for separating a liquid such as oil or water from air delivered from a compressor during the condensate drain cycle of the compressor. The separator includes a housing having an inlet and an outlet. The inlet is configured so as to impart a swirl to a gaseous fluid which enters the inlet. The separator also includes a means to change the direction of the flow of the gaseous fluid. The separator also includes a first filter within the housing in the path of the fluid flow and a second filter within the housing between the first filter and the outlet of the housing. Means for collecting the separated liquid are also provided.
FIG. 1 is a block diagram for a compressor system;
FIG. 2 is a longitudinal cross-sectional view of the fluid separator according to the present invention; and
FIG. 3 is a cross-sectional view of the fluid separator of FIG. 2 taken along lines 3—3.
Referring to the drawings and more particularly to FIG. 1 there is illustrated diagrammatically a compressor system for a gaseous fluid such as ambient air. A compressor is illustrated diagrammatically by reference numeral 3 and includes a filter 1 through which atmospheric air is supplied to the inlet of a first stage 2 of the compressor 3. Compressed air is delivered from the first stage 2 to a second stage 4 of the compressor 3. The second stage 4 is provided with a condensate separator 5 which separates water and oil from the compressed air before the compressed air is delivered to a third stage 6 of the compressor 3 for further compression. The moving parts of the compressor 3 are lubricated with oil which mixes with the air compressed in the compressor 3. Water is included in the ambient air and it too must be removed prior to delivery of the air in its compressed form. The third stage 6 of the compressor 3 also includes a condensate separator 7 to remove water and oil from the compressed air. Compressed air from the third stage 6 of the compressor 3 flows through valves 8 and 9 to an outlet 11 for use in a suitably compressed form devoid of water and oil.
The condensate separators 5 and 7 include drain lines 12 and 13 respectively which communicate with the condensate separator and collector (CSC) 6 through drain valves 15 and 16 respectively.
Periodically it is necessary to drain the condensate separators 5 and 7 of the compressor 3 and when this becomes necessary a valve 14 is actuated to open the valves 15 and 16 to permit condensate in the form of an air and oil/water mixture to flow to the condensate separator and collector 6 of the present invention.
The condensate separator and collector 6 is best shown in FIGS. 2 and 3 as including a substantially cylindrical housing 70 having an upper end cap 80 and a lower end cap 90 which define a chamber 110. An inlet 10 is provided in the upper end cap 80 and connects the chamber 110 to the lines 12 and 13. The inlet 10 is in the form of a pipe which extends into the housing 70 and is provided with internal grooves 120 which impart a swirl to the mixture of air and water/oil draining from the compressor 3. The inlet pipe 10 extends into the chamber 110 as shown in FIG. 2 and at its inner end is connected to an elbow 122 so that the mixture is directed in a spiraling motion through the elbow 122 and impinges against the inner wall 71 of the housing 70. Some of the liquid is separated from the air at this point and more is separated as the air passes through a filter 30 disposed in the path of the mixture rebounding off the inner wall 71. The oil and water which is separated from the air drops to the bottom of the housing 70 and is retained by a gravel bed 40 until it is manually drained through a valve 50.
The air is vented through an outlet 130 provided in the upper end cap 80 after passing through a filter 60 to further remove water/oil mist which has not been removed by the filter 30.
In view of the teaching presented herein, other modifications and variations of the present inventions will be readily apparent to those of skill in the art. The foregoing drawings, discussion, and description are illustrative of one embodiment of the present invention; but are not meant to be limitations on the practice thereof. It is the following claims, including all equivalents, which define the scope of the invention.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US321338 *||Mar 17, 1885||Jun 30, 1885||Feed-water heater|
|US2096851 *||Jun 13, 1934||Oct 26, 1937||Bullard Co||Air purifier|
|US2511967 *||Apr 29, 1948||Jun 20, 1950||Gas and liquto separator|
|US2822887 *||Dec 1, 1955||Feb 11, 1958||Engman Gerald||Moisture separator for air pressure lines|
|US2894600 *||Jun 1, 1954||Jul 14, 1959||Arrow Tools Inc||Air filtering device|
|US3901670 *||Mar 7, 1974||Aug 26, 1975||Minami Takeshi||Lubricant separating means for air driven machinery|
|US4388086||Aug 28, 1981||Jun 14, 1983||Bauer-Kompressoren Gmbh||Interchangeable and disposable filter cartridge and method of removing moisture and oil from compressed breathable air|
|US4402493 *||Feb 23, 1982||Sep 6, 1983||Tokico Ltd.||Vehicle height adjusting device|
|US4402715 *||Dec 23, 1981||Sep 6, 1983||Autoclave Engineers, Inc.||Gas/oil separator|
|US4516994 *||Apr 11, 1984||May 14, 1985||Vilter Manufacturing Corporation||Apparatus for separating liquid droplets from gas|
|US4666473||Jun 13, 1985||May 19, 1987||Rotorcomp Verdichter, Gmbh||Separator for gases and liquids|
|US4828589||Nov 25, 1987||May 9, 1989||Bauer-Kompressoren Heinz Bauer||Filter unit with apparatus for determining the saturation of a drying cartridge|
|US4872890 *||Nov 14, 1988||Oct 10, 1989||Dollinger Corporation||Multi-stage gas-entrained liquid separator|
|US4906264 *||Sep 13, 1989||Mar 6, 1990||Vilter Manufacturing Corporation||Oil separator for separating and collecting oil entrained in refrigerant|
|US5053126 *||Feb 28, 1990||Oct 1, 1991||Ingersoll-Rand Company||Apparatus for gas liquid separation|
|US5113671 *||Nov 26, 1990||May 19, 1992||Ac&R Components Components, Inc.||Oil separator|
|US5409514 *||Sep 3, 1992||Apr 25, 1995||Ragusa; Guiseppe||Air filter|
|US5676717 *||Nov 13, 1995||Oct 14, 1997||Ingersoll-Rand Company||Separator tank|
|US5746791 *||Feb 3, 1997||May 5, 1998||Wang; Chun-Wen||Moisture and contaminant separator for compressed air|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US6350299 *||Feb 28, 2000||Feb 26, 2002||Dekker Vacuun Technologies, Inc.||Multi-chambered air/oil separator|
|US6858067 *||Nov 12, 2002||Feb 22, 2005||Perry Equipment Corporation||Filtration vessel and method for rotary gas compressor system|
|US6880360||Oct 3, 2002||Apr 19, 2005||York International Corporation||Compressor systems for use with smokeless lubricant|
|US7032410||Aug 20, 2004||Apr 25, 2006||York International Corporation||Compressor systems for use with smokeless lubricant|
|US9216379 *||Mar 27, 2012||Dec 22, 2015||Brian Scott Elliott||Method and apparatus for drying compressed air|
|US20040065110 *||Oct 3, 2002||Apr 8, 2004||York International||Compressor systems for use with smokeless lubricant|
|US20040089153 *||Nov 12, 2002||May 13, 2004||Burns David J.||Filtration vessel and method for rotary gas compressor system|
|US20050022551 *||Aug 20, 2004||Feb 3, 2005||York International Corporation||Compressor systems for use with smokeless lubricant|
|DE102004022092A1 *||May 5, 2004||Nov 24, 2005||Bauer-Kompressoren Heinz Bauer||Oxidationskatalytische Abtrennvorrichtung|
|WO2004030792A2 *||Oct 1, 2003||Apr 15, 2004||York International Corporation||Compressor systems for use with smokeless lubricant|
|WO2004030792A3 *||Oct 1, 2003||Jul 22, 2004||York Int Corp||Compressor systems for use with smokeless lubricant|
|U.S. Classification||95/268, 55/DIG.17, 55/421, 55/337|
|International Classification||B01D45/16, B01D50/00|
|Cooperative Classification||Y10S55/17, B01D50/002, B01D45/16|
|European Classification||B01D50/00B, B01D45/16|
|Jan 8, 1998||AS||Assignment|
Owner name: BAUER COMPRESSORS, INC., VIRGINIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BANGS, JONATHAN F.;REEL/FRAME:008927/0837
Effective date: 19971217
|Aug 17, 1998||AS||Assignment|
Owner name: CRYOVAC, INC., SOUTH CAROLINA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:W.R. GRACE & CO.-CONN.;REEL/FRAME:009405/0001
Effective date: 19980814
|May 25, 2004||FPAY||Fee payment|
Year of fee payment: 4
|May 14, 2008||FPAY||Fee payment|
Year of fee payment: 8
|Jun 21, 2012||FPAY||Fee payment|
Year of fee payment: 12